Former President Bill Clinton and presumed 2016 Democratic presidential frontrunner Hillary Clinton have deep ties to Laureate Education, an international conglomerate of aggressive, telemarketing-happy, for-profit colleges that is ensnared in controversy all over the globe.

The huge Baltimore-base company is America’s largest for-profit education corporation by enrollment — boasting 800,000 students worldwide. Many of its schools are located in Latin America.

Laureate scored a marketing coup when it hired Bill Clinton in 2010 as its global pitchman, reports Bloomberg. In his position as honorary chancellor, he has gone around the world over a dozen times – to places such as Peru, Malaysia and Spain — to hawk the company.

For his globetrotting efforts, the for-profit education juggernaut pays Clinton a secret sum of money. Neither Clinton nor Laureate will disclose exactly how much it is.